-8 plus blank plus c - d in communtative property of addition
the answer is not -8 plus 2y plus c - d
what number goes in the blank space
The commutative property of addition states that the order in which numbers are added does not affect the sum. Based on that, the blank space can be filled with any number, and the expression will still be equivalent.
For example:
-8 + x + c - d
-8 + y + c - d
-8 + 10 + c - d
All of the above expressions are valid and demonstrate the commutative property of addition.